DAST: Spatio-Temporal Disaggregation for Maps with Changing Areal Boundaries

Tools for spatio-temporal disaggregation of areal data across multiple time points, including support for changing polygon boundaries. Implements methods for spatially aggregated log-Gaussian Cox process models with changing areal boundaries as described in Ripstein, Brown and Stafford (2026) "Spatio-Temporal Disaggregation with Changing Areal Boundaries" <doi:10.48550/arXiv.2606.25074>. Combines polygon-level observations, population rasters and optional covariate rasters to infer fine-scale spatial fields over time. Models can be efficiently fit using 'TMB' (Template Model Builder) and adaptive Gauss-Hermite quadrature for fast approximate inference or via 'tmbstan' for MCMC.

Version:	0.1.0
Imports:	aghq, cowplot, disaggregation, fmesher, ggplot2, Matrix, numDeriv, rSPDE, sf, sparseMVN, terra, TMB
LinkingTo:	TMB, RcppEigen
Suggests:	knitr, rmarkdown, rstan, testthat (≥ 3.0.0), tmbstan
Published:	2026-06-30
DOI:	10.32614/CRAN.package.DAST (may not be active yet)
Author:	Noah Ripstein [aut, cre]
Maintainer:	Noah Ripstein <noah.ripstein at mail.utoronto.ca>
License:	MIT + file LICENSE
URL:	https://github.com/nripstein/DAST
NeedsCompilation:	yes
Citation:	DAST citation info
Materials:	README, NEWS
CRAN checks:	DAST results

Documentation:

Reference manual:	DAST.html , DAST.pdf
Vignettes:	Disaggregation With Multiple Maps (source, R code)

Downloads:

Package source:	DAST_0.1.0.tar.gz
Windows binaries:	r-devel: not available, r-release: not available, r-oldrel: not available
macOS binaries:	r-release (arm64): DAST_0.1.0.tgz, r-oldrel (arm64): DAST_0.1.0.tgz, r-release (x86_64): not available, r-oldrel (x86_64): DAST_0.1.0.tgz

Linking:

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